Chair frame (common folding chair)



FIG. 1 is a front view of a chair frame of a folding chair according to the present application;

FIG. 2 is a rear view of the chair frame of the folding chair according to the present application;

FIG. 3 is a left view of the chair frame of the folding chair according to the present application;

FIG. 4 is a right view of the chair frame of the folding chair according to the present application;

FIG. 5 is a top view of the chair frame of the folding chair according to the present application;

FIG. 6 is a bottom view of the chair frame of the folding chair according to the present application; and,

FIG. 7 is a perspective view of the chair frame of the folding chair according to the present application. 

CLAIM The ornamental design for a chair frame (common folding chair), as shown and described. 